A flying reptile whose head was topped with a big bony crest that was shaped like the sail of a yacht swooped through the skies over Brazil roughly 90 million years ago.

Scientists on Wednesday announced the remarkable discovery of about 50 fossilized skeletons of the species, called Caiuajara dobruskii — a type of pterosaur that lived alongside the dinosaurs — at a site in southern Brazil.

These pterosaurs, whose wingspans measured up to nearly 8 feet (2.35 meters), inhabited a lakeside oasis in a large desert region during the Cretaceous Period, living in vibrant colonies with others of all ages.